Laravel model validation rules

This package is an alternative to the Laravel built-in validation rules exists and unique. It uses Eloquent models instead of directly querying the database.

Advantages

• The rule can be easily extended with the Eloquent builder. (scopes etc.)
• Softdeletes are working out of the box.
• Logic implemented into the models work in the validation as well. (multi tenancy system, etc.)

Installation

You can install the package via composer with following command:

composer require korridor/laravel-model-validation-rules

Translation

If you want to customize the translations of the validation errors you can publish the translations of the package to the resources/lang/vendor/modelValidationRules folder.

php artisan vendor:publish --provider="Korridor\LaravelModelValidationRules\ModelValidationServiceProvider"

Requirements

This package is tested for the following Laravel versions:

• 8.*
• 7.*
• 6.*
• 5.8.*
• 5.7.* (stable only)
• 5.6.* (stable only)

Usage examples

PostStoreRequest

use Korridor\LaravelModelValidationRules\Rules\UniqueEloquent;
use Korridor\LaravelModelValidationRules\Rules\ExistsEloquent;
// ...
public function rules()
{
    $postId = $this->post->id;
    
    return [
        'username' => [new UniqueEloquent(User::class, 'username')],
        'title' => ['string'],
        'content' => ['string'],
        'comments.*.id' => [
            'nullable',
            new ExistsEloquent(Comment::class, null, function (Builder $builder) use ($postId) {
                return $builder->where('post_id', $postId);
            }),
        ],
        'comments.*.content' => ['string']
    ];
}

PostUpdateRequest

use Korridor\LaravelModelValidationRules\Rules\UniqueEloquent;
use Korridor\LaravelModelValidationRules\Rules\ExistsEloquent;
// ...
public function rules()
{
    $postId = $this->post->id;
    
    return [
        'id' => [new ExistsEloquent(Post::class)],
        'username' => [new UniqueEloquent(User::class, 'username')->ignore($postId)],
        'title' => ['string'],
        'content' => ['string'],
        'comments.*.id' => [
            'nullable',
            new ExistsEloquent(Comment::class, null, function (Builder $builder) use ($postId) {
                return $builder->where('post_id', $postId);
            }),
        ],
        'comments.*.content' => ['string']
    ];
}

Contributing

I am open for suggestions and contributions. Just create an issue or a pull request.

Testing

composer test
composer test-coverage

Codeformatting/Linting

composer fix
composer lint

Credits

The structure of the repository and the TestClass is inspired by the project laravel-validation-rules by spatie.

License

This package is licensed under the MIT License (MIT). Please see license file for more information.